Patents by Inventor James T. Ligon

James T. Ligon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Washer cutting procedure
    Patent number: 4617849
    Abstract: A process for cutting washers, gaskets, seals and the like from elongate stock having elastomeric properties in which the stock is stretched longitudinally and cut transversely while stretched to form an end product with precision parallelity as between the cut surfaces and with uniform thickness and repetitively accurate.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: October 21, 1986
    Inventor: James T. Ligon